00249nam a2200109Ia 4500082002100000100001800021245002200039260004800061300002000109500000500129700000500134  a339.42bAf258.PI  aAfriat, S. N.  aThe Price Indexb  aCambridgebCambridge University Pressc1977  axv, 187p. Bibl.  a  a